Concrete Tunnel Segments - Precast Concrete | UK and Ireland
Video: Watch how they made the 14,260 concrete segments for the Seattle tunnel's outer wall – GeekWire
Concrete Plant Precast Technology
An aerial view of the concrete tunnel segments waiting to be taken into the tunnel at the south portal HS2 align compound, in Rickmansworth, Hertfordshire. Picture date: Wednesday November 3, 2021 Stock
CBE builds world's largest concrete tunnel segment - Construction Week Online
Crossrail tunnel segments stockpiled in preparation for digging